What's your preferred army composition?

[Lemur]

For my conquering army I've become very fond of up-armored naginata samurai as my core. Cavalry doesn't scare 'em, and they mow through everything but katana samurai, with whom they hold their own. They also have some of the highest armor values in the game. So conquering, bribing or revolt/conquering a province with a blacksmith is now one of the first things I do, so I can crank out armored polearms of death.

I field a core of eight or so of my naginata, supported by bow ashigaru, a general and a couple of yari cavalry to do flanking work. A single unit of bomb-throwers is usually in there, since they can devastate a mass of infantry if you can work around the flank.